TL;DR: In this paper, the requirements and performance of the conventional IEEE C37.94 and emerging IEC 61850 protocols for delivering current differential protection over and IP/MPLS network are investigated.
Abstract: This paper reports on the requirements and performance of the conventional IEEE C37.94 and emerging IEC 61850 protocols for delivering current differential protection over and IP/MPLS network. Several configurations and parameters are investigated, and the paper highlights the key differences.
TL;DR: In this article, an IEEE C37.94 based protection information transmitter and receiver is provided to completely prevent malfunction accidents due to external noise and lightning, and the main operation unit monitors an operation state of master mode and slave mode, and a self operation state and a remote state of the protected information transmitter.
Abstract: PURPOSE: An IEEE C37.94 based protective information transmitter and receiver is provided to completely prevent malfunction accidents due to external noise and lightning. CONSTITUTION: A main operation unit(110) provides an EMS function by LAN cable OR RS-232C. The main operation unit monitors an operation state of master mode and slave mode, and a self operation state and a remote state of the protective information transmitter and receiver. A clock unit(120a,120b) generates a system standard clock. An interface unit(130a,130b) transmits a protective switchboard signal to a remote system by a high speed communication network. A subscriber trunk unit(140) performs a direct telephone call function.